With this tweet, fans are up in speculation on what could be the content of this special vehicle; most have guessed that it could be the series’ air date.

As to what this certain vehicle could be, some have speculated that a hearse will be driving down the streets, based on the title of the season’s first episode, “The Empty Hearse.” It does make sense, if a hearse indeed drives down the streets tomorrow.

Nonetheless, Sherlock is STILL intent on the whole social media aspect, as the VERY specific hashtag #r3spects is used for this announcement by the fansite, Sherlockology.

More on this story tomorrow, as the vehicle roams around the said areas…